Trayless Impression Technique を使用した石膏印象による下顎総義歯製作法

概要

論文の詳細を見る
Complete denture construction is thought difficult for cases showing great absorption of the mandibular ridge. For such cases, we developed a method for making lower full denture for which plaster impression was used. Attention was paid to the weight and fluidity of the plaster, which did not attract attention to date, for the plaster impression used in complete denture construction. The best feature of this method is the adoption of Trayless Impression Technique for which plaster was used. This method allows recording of the space enclosed by the buccal mucosa, alveolar ridge, oral floor, and tongue without arbitrary general idea of dentists. Also, the following improvements were made to make up for demerits of the plaster and bring out merits. 1) The adoption of a board shaped resin block as the lower occlusal rim for preventing tongue space reduction and making the occlusal base lighter. 2) The adoption of the platform on the palatal side of the upper front prosthetic teeth for functional harmony. 3) When try-in is done, closed mouth impression is taken as the final impression afier the functional formation of polished surface and border moulding are done. Decisions on the basal seat, denture border, jaw relations and positional arrangement of prosthetic teeth are made easier for difficult cases of edentulous mandible in comparison with the conventional methods.
九州歯科学会の論文
2000-12-25